Pearce Grip Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension 12 Round/10 Round Magazine Texture Black. Does not alter the capacity of the magazine. Will also work with Wilson Combat grip module. Specifications for Pearce Grip Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension: Manufacturer: Pearce Grip Color: Black Finish: Matte Fabric/Material: Polymer Gun Make: SIG Sauer Gun Model: SIG Sauer P365X SIG Sauer P365 XL Additional Features: Finger Grooves Condition: New Material: Polymer Mount: Polymer Base Grip Type: Pistol Grip Gun Type: Pistol Features of Pearce Grip Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension It adds approximately 1/2in inch additional gripping surface as well as enhanced ergonomics; The enhanced griping surface also incorporates a texture which closely matches the frame of the firearm; Made from High Impact Polymer and withstand drop tests at temperatures from -20 F to 250 F; Package Contents: Pearce Grip Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension What firearm models does the manufacturer say Pearce Grip Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension is compatible with? The manufacturer says that Pearce Grip Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension is compatible with SIG Sauer P365 XL SIG Sauer P365XPearce Grip PG365X: Sig Sauer P365X/XL 9mm/.380 Caliber Polymer Grip Extension 12 Round/10 Round Magazine Texture Black